Longtime ally of fellow billionaire Silvio Berlusconi; cofounded financial services group Mediolanum SpA with Berlusconi's Fininvest Group in 1982. Still runs the group, whose companies provide investment advice, banking services, life insurance and real estate loans; Italy's second-largest such group by market capitalization. Stock fell 25% since last February, one of the better performers in a market that fell 45% in the same period. Son Massimo, 41, is heir apparent.